Olimpus Music LTD - Succeeding the popular YDP-S52, the Yamaha YDP-S54 is from Yamaha's Arius line of pianos—ones that entry level digital piano players can enjoy, but robust enough that one with
YAMAHA YDP-S54 Digital Piano – 飛騰音樂中心 Flight Music | 鋼琴班 Roland 數碼鋼琴 電子鼓